<template>
  <div>
    <!--   面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
<!--卡片试图区-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query"
                    clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!--        table表格区域-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"  align="center"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name" align="center"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" align="center"  width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" align="center"  width="70px"></el-table-column>
        <el-table-column label="创建时间"  align="center" width="140px">
<!--          将初始的毫秒数据通过过滤器变为可用的日期数据-->
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center"  width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete"
                       size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

<!--      分页区-->
      <el-pagination
        @size-change="pageSizeChange"
        @current-change="pageCurrentChange"
        :current-page="queryInfo.pageNum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  name: "List",
  data(){
    return{
      //查询列表
      goodsList:[],
      //总数据条数
      total:0,
      //查询参数对象
      queryInfo:{
        query:'',
        pageNum:1,
        pageSize:10
      }
    }
  },
  created() {
    this.getGoodsList()
  },
  methods:{
    goAddpage(){
      this.$router.push('/goods/add')
    },
    removeById(goods_id){
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http.delete(`goods/${goods_id}`).then(({data:res})=>{
          if (res.meta.status!==200) return this.$message.error('删除失败')
          this.getGoodsList()
          return this.$message.success(res.meta.msg)
        })
      }).catch(() => {
        return this.$message.info('已取消删除')
      });
    },
    //当前页数改变时触发
    pageCurrentChange(newNum){
      this.queryInfo.pageNum=newNum
      this.getGoodsList()
    },
    //每页显示数改变时触发
    pageSizeChange(newSize){
      this.queryInfo.pageSize=newSize
      this.getGoodsList()
    },
    //根据分页获取对应的商品列表
    getGoodsList(){
      this.$http.get('goods',{params:this.queryInfo}).then(({data:res})=>{
        if (res.meta.status!==200) return this.$message.error('获取商品列表失败')
        this.goodsList=res.data.goods
        this.total=res.data.total
      })
    },
    search(){
      this.queryInfo.pageNum=1
      this.queryInfo.pageSize=10
      this.$http.get('goods',{params:this.queryInfo}).then(({data:res})=>{
        if (res.meta.status!==200) return this.$message.error('获取商品列表失败')
        this.goodsList=res.data.goods
        this.total=res.data.total
      })
    }
  }
}
</script>

<style scoped>

</style>
